Theoretical study of electronic transport properties of a graphene-silicene bilayer

Golibjon Berdiyorov, H. Bahlouli, F. M. Peeters

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Electronic transport properties of a graphene-silicene bilayer system are studied using density-functional theory in combination with the nonequilibrium Green's function formalism. Depending on the energy of the electrons, the transmission can be larger in this system as compared to the sum of the transmissions of separated graphene and silicene monolayers. This effect is related to the increased electron density of states in the bilayer sample. At some energies, the electronic states become localized in one of the layers, resulting in the suppression of the electron transmission. The effect of an applied voltage on the transmission becomes more pronounced in the layered sample as compared to graphene due to the larger variation of the electrostatic potential profile. Our findings will be useful when creating hybrid nanoscale devices where enhanced transport properties will be desirable.

Original languageEnglish
Article number225101
JournalJournal of Applied Physics
Volume117
Issue number22
DOIs
Publication statusPublished - 14 Jun 2015

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graphene
transport properties
electronics
electrons
Green's functions
retarding
electrostatics
density functional theory
formalism
energy
electric potential
profiles

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Theoretical study of electronic transport properties of a graphene-silicene bilayer. / Berdiyorov, Golibjon; Bahlouli, H.; Peeters, F. M.

In: Journal of Applied Physics, Vol. 117, No. 22, 225101, 14.06.2015.

Research output: Contribution to journalArticle

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